Power cutting machine for printers&#39; borders



May 17, 1932-. J. D. KEENAN ET AL 1,358,552

POWER CUTTING MACHINE FOR PRINTERS BORDERS Filed May 11, 1929 2 Sheets-Sheet 1 al i) J'o 304d zlnioemtofs flum W I May 17, 1 J. D. KEENAN ET AL POWER CUTTING MACHINE FOR PRINTERS BORDERS Filed May 11, 1929 2 Sheets-Sheet 2 Patented May 17, 1932 UNITED STATES PATENT OFFICE JOHN DALE KEENAN EMIL IIGGE, 01 NEW YORK, N. Y., ASSIGNORS TO AMERICAN STEEL GEASE OO INC NEW YORK, N. Y, A CORPORATION OF NEW YORK POWER CUTTING MACHINE FOR PRINTERS BORDERS Application filed Kay 11,

This invention relates to apparatus for mitering printers rules.

Such rules are invariably type high, or 0.918 inches in height, from 1 to 24 points 8 (.0138" to .2484) in thickness, and up to 2 feet in length, the material being soft brass as two separate operations wererequired,

first cutting the rule to proper length and then mitering its ends.

Havin these disadvantages in mind it has been an 0 j ect of the present invention to provide a machine that cuts and miters rules by power at one operation, in a fundamentally correct manner, clamping the rule, irrespective of its thickness in a ositively secure manner, in an upright position, at two points closely adjacent and on opposite sides of an accurately bevelled, double faced cutter movable in a vertical plane across the face-of the work art. v

A irther feature is in the provision of amachine in which the cutting and mitering operation is done at a single stroke, rendering it necessary to use two clamp 'aws for clasping the work and holding eac of the severed pieces after the combined cutting and mitering operation has been performed.

Another purpose is to produce a machine consisting of a complete unit, electrically driven, and provided with all desirable ad justments, both for the cutter and for the rule, so that a border or apanel can be cut and mitered to any given length at one operation.

These and other important features, which will hereinafter appear asthe description progresses are accomplished by the novel and practical design, construction and combination of arts hereinafter described and illustrated in the accompanying drawings, con- 1929. Serial No. 882,444.

stituting a material-part of this disclosure,

and in which Figure 1 is a top plan view of a machine made in accordance with the invention.

Figure 2' is aside elevational view of the same.

tail showing the clampingmechanism.

Figure 4 1s a fragmentary, sectional view taken on line 4-4 of Figure 3.

Figure 5 is a transverse sectional view taken on the line 5 5 of Figure 3.

Figure 6 is a similar sectional view taken on the line 66 of Figure 2.

Referring in greater detail to the drawings the numeral 5 de'signates a platform on which a motor supporting block 6 and electric motor 7. are mounted. In front of and offset on the platform there is provided a stationary base 8 having a front cross head 9 somewhat greater in height'than the rear portion 10 of the base.

The upper face 11 of the base is formed with a dove-tailed groove 12in which the correspondingly shaped bottom 13, of an angular upright bracket 14having reenforcing ribs 14a, is adjustably positioned asshown by Figures 2 and Gofthe drawings.

. An adjusting screw 15, passing through a plate 16 at the rear ofthe base 10, engages the bracket 14 whereby it may adjusted to take up any appreciable wear, on the cutter, further to be described. The bracket may be held rigidly to the base by means ofclam'pscrews 17. v

A forwardly projecting face of the bracket cooperates with a grooved spindle head 19, movable in a vertical plane by an operating lever 20, the lever being pivotally connected as at 21, to an arm 22 carried by the bracket and pivotally connected, as at 23, to a link -24 pivoted to the top of the bracket, and a Figure 3 is an enlarged, fragmentary dethebearings is a pn spindle head in a raised position, see Fig-.

ure 2.

The spindle head 19 is formed with spaced bearings to carry a. spindle 25 and between ley 26 over which is trained a belt 27 driven by the motor shaft pulley 28, the bracket and the spindle head being cut away, as at 29, 30, for the passage ofthe belt.

In this connection, it will be noted that the motor shaft 31 is in a plane slightly below the spindle 25 so that there is tension on the belt when the spindle head is in its top'or bottom position, thus preventing the belt from slipping. The spindle is equipped with a toothed cutter 32, preferably of'highspeed steel, and is secured on the spindle by a nut 33. This cutter, as shown, is accurately bevelled on both sides to an angle of 90 degrees,

thereby producing mitered cuts in the work arts.

The bracket 14 carrying the spindle head is so adjusted that the cutter 32 may be brought into engagement with the rule to be cut when the lever is depressed. By referring to Figure 4 it will be noted that the cross head 9 is equipped with a work supporting plate or strip 34 having a notch or recess 35 on which the rule 36 to be cut is positioned, as shown in dotted lines.

On the plate 34, abutting the inner wall of the cross head, there is positioned a replaceable lead or soft brass plate 37 to protect the'metal cross head from the cutter.

The rule 36 to be mitered is clamped and held firmly in position to be operated upon by the rotary cutter by adouble jawed clamp 40 which may be adjusted to accommodate rules of varying thickness; this clampconsists of a forked block 38 slidable in a recess 39 cut in the cross head 9, below the top thereof, and preferably integral with the block are a pair of upwardly extending clamping jaws 40, 41, spaced so that the cutter 32 may be operated without interference. v

The adjustment and locking means for the movable jaws consist of a threaded shank 42 on the block 38, its shank extending through the front wall of the cross head 9.

A collar 43 fastened to the cross head 9 and an internally threaded sleeve 44 having a knurled knob 45 provides means for adjusting the clamping jaws to engage the work to be cut, as shown in Flgures 3 and 4.

In the detail shown by Figure 5 where the clamping jaws are in their released or unlocked position, means are provided for dislodging the finished work, consisting of a releasing pin 46 having a sprin 47, the pin passing through a hole in a p aten or bar gage 49. By

48 which carries an adjustable pressing the pin against the resistance of the spring, the rule may be released and caused to drop into a discharge chute 50, while a receptacle 51, shown in dotted lines in Figures ing the spindle head and the cutter down-' wardly across the face of the rule. As the lever handle is released, the spindle head rises by reason of the springs 22a, being limited in its movement by a stop 52.

While herein is shown and described the invention, it will be under-stood that modifications and changes may be resorted to.

Therefore the invention is not to be limited and restricted to the exact details shown and described but such changes and modifications may be made as may fairly fall within the scope of the subject matter claimed.

Having shown and described the invention, what is claimed as new and desired to secure by Letters Patent, is

1.. A machine for simultaneously cuttingand mitering a printers border rule comprising a base having a work support, a bracket adjustable on the support, a spindle head slidable on the front of the bracket, a shaft having a-double bevelled toothed cutter on the spindle head, a hand lever connected to the bracket and spindle head for moving the cutter vertically with respect to the side of rule, a. forked clampin member on the front of the work support for engaging the inner side of the rule adjacent each side of said cutter, and manually actuable means to dislodge the rule after mitering.

,2. A machine for simultaneously cutting and mitering a printers border rule comprising, in combination, abase having a work support, a raised bracket horizontally adjustable on the support relative to its front edge, a spindle head slidable vertically on the front of the bracket, a shaft having a double bevelled toothed cutter in the-spindle head, a hand lever connected to the bracket and spindle head for moving the cutter vertically with respect to the side of a rule, an adjustable clamp block having a threaded shank, and a knob having a threaded hub to engage said shank, said block having upwardly and inwardly extending work engaging aws between which said cutter operates whereby when the rule has been cut and mitered the separate parts will be'retained in positive po- 'sition by the respective clamping members of said jaws.

ing, in combination, a base having a work 3. machine for simultaneously cutting f and miterlng a printers border rule comprissupport, an upright bracket on said support,

a dove tailed .spaced bearing block slidable on the front face of said bracket, a s indle journalled in the bearings of said bloc said spindle having a driver pulley between the bearings and a double bevelled toothed cutter on its projecting end, a manually operable lever connected to the bracket and block to raise and lower the cutter, an adjustable clamp block having a threaded shank, a knob having a threaded hub to engage said shank, said clamp block having upwardly and inwardly extending work engaging jaws between which said cutter operates whereby when the rule has been cut and mitered the separate parts will be retained in positive position by the respective cleamping members of said jaws, and means to adjust the vertical piathk of said cutter relative to said clamp 4. A machine for simultaneously cutting and mitering a printers border rule comprising, in combination, a base having a work support, an upright bracket on said support, a spaced bearing block slidable on the frontface of said bracket, a spindle journalled in the bearings of said block, a pulley for driving said spindle, a double bevelled toothed cutter mounted on said spindle, a manually operable lever connected to the bracket and block to raise and lower the cutter, an adjustable clamp block having a threaded shank, a knob having a threaded hub to engage said shank, said clamp block having upwardly and inwardly extending work engaging jawsbetween which said cutter operates whereby when the rule has been cut and mitered the separate parts will be retained in positive position by the respective clamping members of said jaws, and means to adjust the vertical path of said cutter relative to said clamp block.

In testimony whereof we aflix our signatures.

JOHN. DALE KEENAN. EMIL FIGGE. 

